const obj = {
  one: {
    a: '1'
  },
  two: {
    b: '2',
  }
}

const aList = [obj.one, obj.two,]
console.log(aList)
console.log(aList.includes({ a: '1' }))
console.log(aList.indexOf({ a: '1' }))
console.log(aList.some((item) => item.a === obj.one.a))
